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From: Po Lu <luangruo@yahoo.com>
Newsgroups: gmane.emacs.devel
Subject: Re: Incorrect byte compiler error/warning message positions. A
 possible fix.
Date: Mon, 15 Nov 2021 13:29:23 +0800
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Cc: Alan Mackenzie <acm@muc.de>,  emacs-devel@gnu.org
To: Lars Ingebrigtsen <larsi@gnus.org>
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Xref: news.gmane.io gmane.emacs.devel:279467
Archived-At: <http://permalink.gmane.org/gmane.emacs.devel/279467>

Lars Ingebrigtsen <larsi@gnus.org> writes:

>> The byte compiler reports wrong source positions in its error and
>> warning messages; not every time, but perhaps most of the time.  There
>> are currently at least six open bugs for this problem, e.g. bug #22288.

> In my experience, the vast majority of the warning messages point to the
> correct position.  But, yes, it does sometimes give the wrong position.

I wouldn't say the "correct position", but somewhere close to the
correct position.

It could be, for example, a few lines above where it should actually be,
when giving diagnostics for unused lexical bindings.

But it is usually close enough for people to quickly locate and solve
the error.